Miele H 344-2 B Operating Instructions Manual page 19

Then run the oven for at least 1 hour at
a high temperature. To do this:
^ Turn the programme selector to the
Fan D position.
The suggested temperature of 160 °C
appears in the display.
^ Whilst the triangle V is flashing
underneath the U symbol, use the
(–/+) input dial to set the temperature
to its highest setting (250 °C).
Once this setting has been accepted
– the oven heating will switch on,
– and the actual temperature in the
oven will show in the display.
The timer can also be used to set the
finish time (see "Switching off
automatically").
Please ensure the room is well
ventilated during this operation.
19